/****************************************************************************
Aaru Data Preservation Suite
-----------------------------------------------------------------------------

    Author(s)      : Natalia Portillo

--[ License ] ---------------------------------------------------------------
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as
     published by the Free Software Foundation, either version 3 of the
     License, or (at your option) any later version.

     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.

-----------------------------------------------------------------------------
Copyright (C) 2011-2021 Natalia Portillo
*****************************************************************************/

#ifndef AARU_FSTESTER_SETTER_SRC_DOS_H
#define AARU_FSTESTER_SETTER_SRC_DOS_H

#if defined(__WATCOMC__) || defined(_MSC_VER) || defined(__ZTC__)
#include <direct.h>
#define __dos_mkdir(path) mkdir(path)
#elif defined(__DJGPP__)
#include <sys/stat.h>
#define __dos_mkdir(path) mkdir(path, 0)
#elif defined(__TURBOC__)
#include <dir.h>
#define __dos_mkdir(path) mkdir(path)
#endif

#if defined(__BORLANDC__) && __BORLANDC__ <= 0x200
#define OLD_BORLAND 1
#endif

#if defined(__TURBOC__) && __TURBOC__ <= 0x297 && !defined(OLD_BORLAND)
#define OLD_BORLAND 1
#endif

#if defined(__WATCOMC__)
#if __WATCOMC__ >= 1100
#pragma pack(__push, 1)
#else
#pragma pack(1)
#endif
#elif defined(_MSC_VER) && _MSC_VER <= 800
#pragma pack(1)
#elif defined(__ZTC__)
#pragma ZTC align 1
#else
#pragma pack(push, 1)
#endif

typedef struct diskfree_ex_t
{
    unsigned short size;
    unsigned short version;
    unsigned long  sectorsPerCluster;
    unsigned long  bytesPerSector;
    unsigned long  freeClusters;
    unsigned long  totalClusters;
    unsigned long  freeSectors;
    unsigned long  totalSectors;
    unsigned long  freeUnits;
    unsigned long  totalUnits;
    unsigned char  reserved[8];
} diskfree_ex;

unsigned int _dos_getdiskfree_ex(unsigned int drive, struct diskfree_ex_t* diskspace);

#ifdef __DJGPP__
unsigned int _djgpp_getdiskfree_ex(unsigned int drive, struct diskfree_ex_t* diskspace);
#endif

#if defined(__WATCOMC__)
#if __WATCOMC__ >= 1100
#pragma pack(__pop)
#else
#pragma pack()
#endif
#elif defined(_MSC_VER) && _MSC_VER <= 800
#pragma pack()
#elif defined(__ZTC__)
#pragma ZTC align
#else
#pragma pack(pop)
#endif

#define YEAR(t) (((t & 0xFE00) >> 9) + 1980)
#define MONTH(t) ((t & 0x01E0) >> 5)
#define DAY(t) (t & 0x001F)
#define HOUR(t) ((t & 0xF800) >> 11)
#define MINUTE(t) ((t & 0x07E0) >> 5)
#define SECOND(t) ((t & 0x001F) << 1)

#ifndef ENOMEM
#define ENOMEN 12
#endif

#ifndef ENOSYS
#define ENOSYS 38
#endif

#ifndef EINVAL
#define EINVAL 22
#endif

// Seems these were defined starting in Borland C++ 3.0
#ifdef OLD_BORLAND
#include <io.h>

#define _dos_setfileattr(path, attrib) _chmod(path, 1, attrib)
#define _dos_close(handle) _close(handle)
#define _dos_setdrive(drivep, ndrives) setdisk(drivep)

unsigned _dos_write(int handle, void far* buf, unsigned len, unsigned* nwritten);
unsigned _dos_creat(const char* path, int attrib, int* handlep);
unsigned _dos_creatnew(const char* path, int attrib, int* handlep);

#endif

#endif